Combined street-sweeper and collector.



J. T. WHITTOME. COMBINED STREET SWEEPER AND COLLECTOR.

APPLICATION FILED MAY 10, 1907.

Patented Aug. 22, 1911.

4 SHEETS-SHEET 1.

M 653-2: flV-Clofd) W2 1 J.'T. WHITTOME.

COMBINED STREET SWEEPER AND COLLECTOR.

' APPLICATION FILED MAY 10, 1907. 1,001, 1 O7.

Patented Aug. 22, 1911.

4 SHEETS-SHEET 2.

J. T. WHITTOME.

COMBINED STREET SWEEPER AND COLLECTOR.

APPLICATION FILED MAY 10, 1907.

1,001,107. PatentdAug.22,l91l.

4 SHEETS-SHEET 3.

I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIII I 1-.

I M \u I I I I I I l I I I II I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIII IV Q I /%1n eSJqJ jzzrcnz ai APPLICATION FILED MAY 10, 1907.

Patented Aug. 22, 1911.

4 SHEETS-SHEET 4.

COLUMBIA PLANOGRAFH c JOHN THOMAS WHITTOME, OF TAVISTOGK, ENGLAND.

COMBINED s'rannr-swnnrnn nn COLLECTOR.

Specification of Letters Patent.

Patented Aug. 22, 1911.

Application filed May 10, 1907. Serial No. 372,950.

To all whom it may concern:

Be it known that I, JOHN THOMAS WVHIT- TOME, residing at Parkwood Road,Tavistook, in the county of Devon, England, have invented a CombinedStreet-Sweeper and Collector; and I hereby declare that the following isa full, clear, and exact description of the same.

This invention relates to a combined street sweeper and dirt collector,which will sweep the dirt from the surface over which the apparatuspasses, collect it into a receptacle provided for that purpose, andconvey it by an elevator or carrier from the receptacle to a cart orWagon.

It further relates to a means for automatically moving the dirt in thereceptacle into the path of the elevator or carrier, and to a means bywhich the elevator of carrier is enabled to pass any obstacle whichenters its path.

For an understanding of the invention reference is to be had to thefollowing description and to the accompanying drawings, in which, v

Figure 1, is a side elevation of a sweeper and cart with one side of theelevator removed. Fig. 2, is a side elevation of a sweeper, showing amodification of the construction illustrated in Fig. 1, with theelevator side removed. Fig. 3, is a rear elevation of the sweeper shownin Fig. 2, with the sweeper brush removed. Fig. 1, is a detail view ofthe mechanism for actuating the side scrapers operating in the dirtreceptacle. Fig. 5, is a plan view of the mechanism shown in Fig. 4:.Fig. 6, is a detail view of one of the elevator buckets shown in Fig. 1.Fig. 7 is a detail view of one of the elevator buckets shown in Figs. 2and 3. Fig. 8, is a view showing one set of elevator scrapers. Fig. 9,is a side view of one of the scrapers shown in Fig. 8.

Like characters of'reference refer to like parts throughout thespecification and drawings.

Referring to Fig. l; the rotary brush B is revolubly mounted in the armsI) rockably mounted on the shaft G, journaled in the sweeper frame, sothat the brush can accommodate itself to the surface over which it ismoving. Power is transmitted to the brush by chains G passing oversprocket wheels G on the shaft G and sprocket wheels G on the brushshaft. The shaft G is driven by chains Cr passing over sprocket wheelsGr mounted on a sprocket wheel shaft 9 and other sprocket wheels (notshown) on the shaft G. The sprocket wheels G are driven by pinions G onthe axle a and pinions (not shown) on the sprocket wheel shaft g.

The lower part of the elevator casing P forms a dirt receptacle P havingan opening P, through which the dirt fromthe brush B is thrown into thedirt receptacle. Pivoted to the lower edge of the opening P is an apronb", which together with the brush B may be vertically adjusted. Thisadjustment is effected by chains or cords b connecting the apron b withthe arms I) and the latter with the rocker beams 5 The rocker beams bare fulcrumed to the sweeper frame at b, and pivotally connected to therocker beams 12 and to the adjustment levers b are links 6 The adjust--ment levers b are fulcrumed to the standard b, and are operated torespectively raise or lower the brush B. Pivoted at C -to the dirtreceptacle P are arms C in which is mounted a shaft c fitted withsprocket wheels 0 and journaled at the top of the elevator is a shaft12, on which are mounted sprocket wheels H. Passing around the sprocketwheels H and c are sprocket chains C to which are secured the buckets C.Mounted on the shaft n is a sprocket wheel m driven from the shaft G, bya chain G Idlers h are provided for the sprocket chains C immediatelybelow the sprocket wheels H. The buckets carry the contents of the dirtreceptacle over the sprocket wheels H, and deposit the said contentsthrough the delivery spout P into the cart. The arms C are provided withstuds C vertically movable in the slots C of the hanger arms C thelatter being pivoted at C to the elevator sides, so thatwhen an obstacleobstructs the path of the buckets C, the sprocket shaft 0 can moveupwardly to enable the bucket or buckets to clear the obstacle, andresume its normal position by gravity when the obstacle has been passed.

Connected to the front of the sweeper is an axle upon which may bemounted one or more guide wheels E, and attached to the front of thesweeper is a draw bar F.

The construction shown in Fig. 2, is in many respects similar to thatshown in Fig. l, but in this case the drive wheels A, are situatedcloser to, the elevator, and the drive wheel axle a is provided with cogwheels A meshing with cog wheels a on the shaft G. In Fig. l, thesprocket wheels I-I are shown to be of greater diameter than thesprocket wheels 10 shown in Fig. 2, and in the latter figure the idlersh shown in the former figure are dispensed with. In Fig. 2, theadjusting levers b are pivoted to the elevator frame instead of to thestandards 5 as shown in Fig. 1, but otherwise the general principle ofthe construction and operation of the parts shown in Fig. 2, is the sameas that in Fig. 1.

Means are providedfor moving the dirt in the dirt receptacle P into thepath of the elevator buckets C, and for scraping the dirt away from thedelivery spout P of the elevator to prevent it accumulating at thatplace. The means for moving the dirt in the dirtreceptacle into the pathof the elevator is shown in Figs. 3, 4E and 5, and may be described ascomprising scrapers D working from the ends of the dirt receptacle Ptoward the elevator buckets C. The scrapers D are connected to scraperarms d having guide plates d formed with guide slots d, to receive thecrank pins d attached to the bevel wheels d The bevel wheels d are gmounted to revolve on studs 03 projecting from the standards 03 securedto the sweeper frame and their rotation is effected by bevel wheels d onthe shaft G. During the rotation of the bevel wheels 0Z the crank pins dengage in the guide slots d, and move the scrapers from the positionshown in the full lines, to that shown in dotted lines in Fig. 8. Duringthe movement of the scrapers, from the position shown in full lines tothat shown in dotted lines, the crank pins cl engage with the bottomends of the guide slots al and drag the scrapers along the bottom of thedirt receptacle. During the return of the scrapers from the positionshown in dotted lines, to that shown in full lines, the crank pins 03engage at the top of the slots and lift the scrapers from the bottom ofthe dirt receptacle.

I To prevent the accumulation of the dirt in the delivery spout P ascraping device is provided consisting of scrapers 70 provided withscraper arms 72 mounted on a crank shaft k driven by a chain 70 from theshaft n. The ends of the scraper arms 70 are connected by links ispivoted to the elevator frame. The rotation of the crank shaft 70carries the scrapers in an outward direction along the bottom of thedelivery spout P to eject the dirt resting thereon, and during thereturn movement, the scrapers 7a are raised above the bottom of thedelivery spout until they attain its inner end, when they are loweredinto engagement with it.

In the operation of the apparatus the drive wheels A revolve the shaft(4 and the revolution of the shaft (F'revolves the cog wheel A whichmeshing with the cog wheel (1 causes the revolution of the shaft G. Therevolution of the shaft G, through the agency of the bevel wheels drevolves the bevel wheels d and crank pins d, to oscillate the scrapersD between the ends of the dirt receptacle and buckets C. To hold thescraper arms and scrapers in a position where they will be obliged tocomplete the full distance of their travel, links cl are connected tothe scraper arms (Z and to a pivot plate (Z secured to the elevator.

I claim 1. In a combined street sweeper and collector in combination, anaxle, two ground wheels mounted thereon, a dirt receptacle suspendedfrom the axle of the ground wheels, an elevator to remove the contentsof the dirt receptacle, an elevator driving means actuated by the groundwheels, two scrapers within the dirt receptacle and lo-- cated one oneach side of the elevator, and provided with scraper arms extendingbeyond the dirt receptacle, links pivoted to the scraper arms and to theelevator, and means I for imparting reciprocating motion to the scraperarms and scrapers actuated by the elevator driving means.

2. In a combined street sweeper and collector in combination, an axle,two ground wheels mounted thereon, a dirt receptacle suspended from theaxle of the ground wheels, an elevator to remove the contents of thedirt receptacle, an elevator driving means actuated by the groundwheels, two scrapers within the dirt receptacle and located one on eachside of the elevator, and provided with scraper arms extending beyondthe dirt receptacle, links pivoted to the scraper arms and to theelevator, slotted guide plates secured to the scraper arms, and a crankoperating in the slotted guide plate rotated by the elevator drivingmeans.

3. A combined street sweeper and collector comprising an elevator,consisting of an elevator casing, a sprocket shaft journaled at theupper end of the elevator casing, sprocket wheels mounted thereon, armspivotally connected to the elevator casing at the lower end thereof, asprocket shaft journaled in said arms, sprocket wheels mounted on thelast mentioned sprocket shaft, elevator chains passing around thesprocket 125 wheels, elevator buckets connected tothe sprocket chains,and guide arms to control the movement of the first mentioned arms.

4. A combined street sweeper and collector comprising an elevatorcasing, having a dirt receptacle at one end thereof, a drive shaft,links pivotally connected to the scraper arms bevel Wheels mounted onthe drive shaft, and to the elevator casing. 10 bevel Wheels driven bythe first mentioned In Witness whereof I have hereunto set my bevelWheels, scraper arms, slotted guide hand in the presence of twoWitnesses.

5 plates for the scraper arms, cranks for the JOHN THOMAS WVHITTOME.

second mentioned bevel Wheels engaging in Witnesses: the slotted plates,scrapers connected to the 1 JOHN GHYNOWETH, scraper arms Within the dirtreceptacle and i EDWARD YOUNG.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

